* {
  border: none;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  position: relative;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(#e66465, #9198e5);
}

#app {
  position: relative;
  width: 100%;
}

.container {
  position: absolute;
  top: 40%;
  left: 5%;
  width: 90%;
  margin: 100px auto;
  padding: 10px;
  background-color: #e0e0e0;
  border-radius: 20px;
  box-shadow: 1px 1px 10px rgba(0, 0, 0, 0.2);
}

h3 {
  text-align: center;
}

@media (min-width: 640px) {
  .container {
    left: 50%;
    width: 640px;
    margin-left: -320px;
  }
}
